baber/WOPTO huggingface dataset:
Patent CA-2245240-A1 (CA)
Title: A method and apparatus for enhancing communication reception at a wireless communication terminal
Inventor: GREENSTEIN LAWRENCE JOEL
IPC: H04L1/06
Filed: 1998-08-18
Abstract: A system provides transmit diversity with feedback to enhance the reception of communication signals at a wireless communication terminal.  Multiple antennae are provided at the base station.  The multiple antennae transmit multi-carrier information signals such as OFDM including pilot tones.  The wireless communication terminal receives the pilot tones and performs processing on those tones to detect the relationship between the information signals transmitted from the various antennae of the base station.  A feedback signal, based on the comparison of the pilot tones communicates back to the base station information about the channels of the respective transmit antennae to the terminals.  The base station modifies the transmission processing associated with the various transmit antennae based upon the feedback signal.  The modified processing improves the reception of the information signals at the wireless communication terminal.
Patent CA-2246637-A1 (CA)
Title: Developmental learning machine and method
Inventor: WENG JUYANG
IPC: G06N20/00
Filed: 1998-10-07
Abstract: A machine and method capable of developing intelligent behavior from interaction with its environment directly using the machine's sensors and effectors. The method described is independent of the type of sensors and actuators, or the tasks to be executed, and, therefore, provides a general purpose learner that learns while performing. It senses the world, recalls what is learned, judges what to do and acts according to what it has learned. The machine enables the machine to learn directly from sensory input streams while interacting with the environment, including human teachers. The presented approach enables the system to self-organize its internal representation, and uses a systematic way to automatically build multi-level representation using the Markov random process model.  Reward and punishment are combined with sensor-based teaching to develop intelligent behavior.
Patent CA-2247401-A1 (CA)
Inventor: SHIN HYUNKOOK
IPC: D01D5/11
Filed: 1997-03-07
Abstract: Olefin/carbon monoxide alternating polymers are flash-spun to form plexifilamentary products, pulp products, and foam products from alcohol or halogenated hydrocarbon solvents having 1 to 3 carbon atoms.
Patent CA-2247993-A1 (CA)
Inventor: WAGONER ROBERT
IPC: F16C19/52
Filed: 1997-03-26
Abstract: A radially disposed thrust bearing assembly for rotary cone rock bits (10) consists of a first non-rotating radially disposed steel thrust bearing disc (50) and an adjacent, carbide thrust bearing disc. One of the thrust bearing discs is pressed into a disc retention socket (38) formed in the end of a spindle bearing (28)extending from the end of a main axially aligned bearing cantilevered from a leg (13) of the bit and the other thrust bearing disc (40) is pressed into a disc retention socket (39) formed in the rotary cone (18).      An edge of the carbide disc is formed with large valleys (45) and peaks (44), the robust undulations resist cracking when the carbide thrust bearing disc is pressed into its respective socket. Unique air passages (32, 33, 34) and channels (36) are formed in the main and spindle bearings to direct cooling air to the thrust bearing discs. A second embodiment of a radially disposed thrust bearing assembly for rotary cone rock bits consists of a pair of preferably carbide thrust buttons (340, 350), each of which has a central bore (342, 352) and a plurality of channels (360, 370) on its back face. The channels and central bore communicate with an air passage (334) through the bit so as to provide a flow of cooling fluid such as air to the back of each thrust button. The invention further includes thrust bearing systems in which both of the thrust buttons comprise hard metal or sintered material.
Patent CA-2259172-A1 (CA)
Inventor: KUROTORI KATSUYA
IPC: H04B10/25
Filed: 1998-04-21
Abstract: L'invention concerne un émetteur optique comportant une source lumineuse à fond supercontinu (4) constituée d'un amplificateur optique (2) réalisé à l'aide d'une fibre d'amplification des ondes polarisées entretenues (1), et une fibre optique à ondes polarisées entretenues (3), laquelle présente une longueur d'au moins une valeur spécifiée, est raccordée au côté sortie de l'amplificateur optique (2) et émet de la lumière présentant une longueur d'onde continue et un plan stable de polarisation. Cet émetteur optique comprend également un démultiplexeur optique à ondes polarisées entretenues (5), lequel extrait de la lumière à longueur d'onde continue une lumière d'une longueur voulue, et un modulateur externe (6) qui superpose les informations voulues à la lumière de la longueur d'onde voulue.
Patent CA-2261133-A1 (CA)
Title: Glass compositions for high thermal insulation efficiency glass fibers
Inventor: ALBERS MARK ALAN
IPC: C03C13/00
Filed: 1998-06-08
Abstract: Glass compositions displaying decreased far infrared radiation transmission, high biosolubility, and excellent moisture resistance are capable of fiberization by the rotary process, and may be used to prepare thermal insulation products exhibiting high thermal insulation efficiency as reflected by low thermal index values.
Patent CA-2264433-A1 (CA)
Title: Methods and apparatus for inter-frequency handoff in a wireless communication system
Inventor: BERNSTEIN NEIL E
IPC: H04W36/14
Filed: 1999-03-03
Abstract: Inter-frequency handoffs in a CDMA or other wireless communication system are controlled using a noise-limited coverage trigger metric which is able to distinguish between same-frequency cell boundaries and other-frequency cell boundaries in the system. The trigger metric may be generated as a function of an average signal-to-noise measure for pilot signals received at a mobile station of the system and a linear sum of the signal-to-noise measures. The signal-to-noise measures may be generated in the mobile station and included in messages transmitted from the mobile station to one or more base stations of the system. The trigger metric is used to control a handoff from a current frequency to a new frequency in an ongoing call. The trigger metric may alternatively be based on a measure of mobile receive power alone. Other aspects of the invention reduce unnecessary searching for a new frequency and decrease the likelihood of "ping-ponging" from a current frequency to a new frequency by providing additional checks in the handoff process. For example, receive power and pilot signal-to-noise measures may be generated at a mobile station for both current and new frequencies. The mobile station then continues to operate at the current frequency as long as certain predetermined threshold conditions based on the measures are satisfied.
Patent CA-2264656-A1 (CA)
Inventor: IGLESIAS JOSEPH M
IPC: A61F7/08
Filed: 1997-08-29
Abstract: An ankle support (100) is constructed using a molded pad (110) and a rigid shell (112). The pad (110) and the shell (112) may be sealed together to form a bladder-pad cushion for comfort. The internal structure of the pad (110) is molded to include geometrically shaped cells of various size, shape and thickness to provide differing levels of localized comfort to the user of the ankle support (100).  The pad may be made from a thermoplastic elastomer (TPE) which is spring-like and resists compression sets. The pad may include integrally-molded fingers extending to the shell. The fingers may have different lengths in one or more regions, in order to increase the cushioning effect in a particular region. The pad/shell combination may form a sealed bladder, and a pneumatic pump may be provided in conjunction with the shell so that the user can inflate the bladder.
Patent CA-2267303-A1 (CA)
Title: A self-healing capacitor
Inventor: BONHOMME HENRI
IPC: H01G4/015
Filed: 1997-10-02
Abstract: A self-healing power capacitor (1) comprising at least one capacitor unit (9-1, 9-2, 9-3), each capacitor unit (9) comprising at least one winding (2), said windings (2) of each capacitor unit (9) being provided with a first and a second connection electrode (10, 11), said windings (2) being surrounded by an encapsulation material (4) and housed in a first casing (3), said capacitor (1) having at least one protection element (6) for each capacitor winding (2), said protection element (6) comprising a membrane (16) provided for activating, upon a pressure exerted on said membrane (16) by a gas produced by a short-circuit within sais windings (2), a current interruption element (19), said protection element (6) being mounted in a second casing (13) which is mounted inside said first casing (3), said second casing (13) having one side formed by said membrane (16) and which is separated by a narrow gap (12) from an end-face of said windings (2).
Patent CA-2268380-A1 (CA)
Title: Restoration method for multiplexed circuits
Inventor: CORNELL PETER S
IPC: H04Q3/66
Filed: 1999-04-08
Abstract: Restoration of a multiplexed circuit in a network (10) is effected in accordance with the probability of failure of that circuit determined in accordance with:  (1) how many constituent circuits in the multiplexed circuit are provisioned for service; (2) how many constituent circuits in the multiplexed circuit have failed and (3) how many constituent circuits in the multiplexed circuit are in service and out of service. If the probability of failure differs from a prescribed reference value by a predetermined threshold, a processor (28) effects restoration by choosing an alternate path.
Patent CA-2270792-A1 (CA)
Title: Disposable diaper
Inventor: SHIMOE NARIAKI
IPC: A61F13/15
Filed: 1999-05-05
Abstract: A disposable diaper 1 is formed on its inner surface approximately in its longitudinally rear half area with a plurality of protuberances 21 extending transversely across this rear half and intermittently arranged longitudinally of the diaper 1 to thereby prevent loose fecal material from flowing forward and from leaking a rear end of the diaper.
Patent CA-2272536-A1 (CA)
Title: Immune responses using compositions containing stress proteins
Inventor: MIZZEN LEE
IPC: A61K47/48
Filed: 1997-11-25
Abstract: The present invention relates to a vaccine for inducing an immune response to an antigen in a vertebrate (e.g., mammal) comprising an antigen and all or a portion of a stress protein or all or a portion of a protein having an amino acid sequence sufficiently homologous to the amino acid sequence of the stress protein to induce the immune response against the antigen. In a particular embodiment, the present invention relates to vaccines and compositions which induce a CTL response in a mammal comprising an antigen and all or a portion of a stress protein. In another embodiment, the invention relates to vaccines and compositions which induce an immune response to an influenza virus in a mammal comprising an antigen of the influenza virus and all or a portion of one or more stress proteins. The invention also relates to vaccines and compositions for inducing a CTL response to a tumor-associated antigen comprising a tumor-associated antigen and all or a portion of the stress protein. The invention also relates to vaccines and composition for suppressing allergic immune responses to allergens comprising an allergen and all or a portion of a stress protein.
Patent CA-2273811-A1 (CA)
Inventor: ROTHWELL HAROLD L JR
IPC: H05B41/24
Filed: 1999-06-08
Abstract: A neon gas discharge lamp is provided which produces an acceptable amber color emission for automotive applications. The red emission from the neon discharge when the lamp is operated in a pulsed mode is combined with a green emission from a substituted Y3A1 15 O 12:Ce phosphor coated on the interior surface of the lamp. The resulting amber emission meets both SAE and ECE amber color requirements. In particular, phosphor has the general formula:      Y3-(a+b+c) Ce a B b V c A1 5 O 12 where M is Gd or La;      V are lattice vacanies; 0.01 ~ a ~ 0.08; 0.60 ~ b ~ 2.4; and 0 ~ c ~ 0.1
Patent CA-2274107-A1 (CA)
Inventor: VALENTINO JOSEPH A
IPC: B60R1/02
Filed: 1997-12-17
Abstract: An automatic mirror rotation assembly for a vehicle (20) including a tractor (24) and semi-detached trailer (22) is provided. An elongated arm (50) supporting a rotatable wheel (58) attaches to a support (40) mounted at a selected position on the tractor (24) chassis.      The arm (50) is pivoted upward until the wheel (58) contacts the underside of the trailer (22), and is kept engaged with substantially constant pressure. As the vehicle turns, the rotation of the trailer (22) with respect to the tractor (24) is measured by counting rotations or partial rotations of the wheel (58) against the underside surface of the trailer (22). A corresponding degree of passenger-side rear view minor is calculated, and a motor automatically rotates the mirror. A feedback device (200) measures the actual rotation of the mirror and feeds that information back to the assembly.
Patent CA-2275926-A1 (CA)
Inventor: FISCHER KURT
IPC: H02G11/00
Filed: 1997-12-09
Abstract: The invention concerns an energy-supply chain for holding cables, hoses or the like, with a plurality of chain links which are interconnected in hinged manner and are formed by mutually parallel link plates (1) and transverse webs (2, 3) connecting the latter, the link plates (1) comprising lateral locking projections (7) which are directed towards the interior of the chain in order to hold correspondingly designed transverse webs (2, 3) or intermediate parts in a detachably locking manner. According to the invention, in order to increase the useful cross-section of the energy-supply chain in modular manner, at least some of the transverse webs (2, 3) are designed as preferably multipart stirrups which form on at least one side a widening of the chain cross-section delimited by the parallel upper and lower edges of the link plates (1). The width and/or height of the stirrups can be altered by means of adapters (11).
Patent CA-2276334-A1 (CA)
Title: Identification card reading apparatus and method
Inventor: OKUDA OSAMU
IPC: G07C9/00
Filed: 1999-06-28
Abstract: A card reading apparatus is used in an identification card system for identifying a card holder utilizing identification information recorded on an identification card. The reading apparatus is arranged to reproduce identification information recorded on the card. A display displays the reproduced identification information. After the card is discharged from the apparatus, the display is arranged to continue to display the reproduced identification information to enable the information to be checked against a picture of the cardholder printed on the card.
Patent CA-2276718-A1 (CA)
Inventor: VALIN DANIEL
IPC: B21D39/04
Filed: 1997-12-23
Abstract: The invention concerns the production of an assembly (10) formed of two parts shrunk crosswise, viz. a cylindrical part (11) and a tubular part (12) with a transverse hole (14), which is bordered by cut-off edges (18) and in which the cylindrical part (11) is forcefully fitted. The invention is characterised in that a bracing block (16) internally stays the tubular part (12) around the hole (14). The invention is applicable in particular to the assembly of two parts.
Patent CA-2277044-A1 (CA)
Title: Procede de commande des gouvernes d'un avion pour agir contre une deviation laterale de trajectoire au sol
Inventor: MATHIEU GERARD
IPC: G05D1/02
Filed: 1998-11-10
Abstract: La présente invention concerne un procédé de commande des gouvernes d'un avion pour agir contre une déviation latérale de trajectoire au sol lors d'un atterrissage ou d'un décollage interrompu, dans lequel on réalise une sortie dissymétrique des surfaces de gauchissement.
Patent CA-2277483-A1 (CA)
Inventor: JACKSON STEPHEN PHILIP
IPC: G01N33/68
Filed: 1998-01-13
Abstract: Ku (Ku70 and Ku80) of yeast and mammalian cells and other components of the Kuassociated DNA repair pathway are involved in retrotransposon and retroviral integration into cellular nucleic acid. Agents which inhibit activity of the pathway are useful for inhibition of retroviruses. Such agents are obtainable using assays involving the Ku-associated DNA repair pathway and one or more components thereof.
Patent CA-2281048-A1 (CA)
Title: Method and apparatus for arc welding
Inventor: ALMY DAVID G
IPC: B23K9/073
Filed: 1999-08-27
Abstract: A method and apparatus for welding include a source of power, a wire feeder and a controller. The controller sends control signals to the wire feeder and the source of power. The controller also has an adjustable arc control input, and the controller controls at least three welding parameters in response to the arc control input.      The arc control input may be an arc width input, and the controller may simultaneously control at least three welding parameters to obtain a desired arc width. The at least three welding parameters may include at least three of peak welding current, background welding current, pulse width, and frequency and the arc control input may be a user-selectable input.
Patent CA-2282108-A1 (CA)
Inventor: TAYLOR G KIMBERLEY
IPC: B23D51/00
Filed: 1999-09-13
Abstract: Disclosed is a handsaw guard which is detachably connected to a portion of a handsaw so as to protect the area around a person's hand when cutting through an object with a handsaw. The guard has a generally C-shaped cylindrical portion which is capable of being snap-fitted to a post of the handsaw adjacent the handle grip and a plate-like shell portion integrally formed with the cylindrical portion and extending outwardly from a side of the cylindrical portion.
Patent CA-2282688-A1 (CA)
Inventor: PERRET PATRICE
IPC: C08L67/02
Filed: 1998-12-28
Abstract: Polyester injection-moulded parts based on a polyester (A) and on a copolymer (B) of ethylene and of an unsaturated epoxy, such that weight % (B)xMFI (A+B)/MFI(A) is greater than 3 and in this expression:MFI (A+B) denotes the melt flow index of the modified polyester, that is to say the blend of (A) and (B) and of any fillers;MFI (A) denotes the melt flow index of the polyester (A) and of any fillers (without (B)); andweight % (B) denotes the percentage by weight of (B) in the blend of (A) and (B) and of any fillers.
Patent CA-2283235-A1 (CA)
Title: Forward folding tillage implement
Inventor: FRIGGSTAD TERRENCE
IPC: A01B73/02
Filed: 1998-03-12
Abstract: A forwardly folding tillage implement carries a number of ground engaging tools on a tool gang frame disposed to the rear of a carrier frame. A rockshaft is disposed between the carrier frame and the tool gang frame and is movable between four rotated positions about two axes of rotation. A control mechanism controls the relative angular position of the rockshaft. A support mechanism is disposed rearwardly of the axes of rotation to support the rear of the tool gang frame above the ground in the field working position. An abutment member restrains the relative rotation between the rockshaft and the tool gang frame to fully support the tool gang frame on the rockshaft upon rotation of the rockshaft.
Patent CA-2284976-A1 (CA)
Title: Process for preparing single enantiomer narwedine
Inventor: TIFFIN PETER DAVID
IPC: A61K31/55
Filed: 1998-04-08
Abstract: A process for the preparation of substantially single enantiomer (-)-narwedine comprises seeding a solution of racemic narwedine dissolved in a solvent with substantially single enantiomer (-)-narwedine, provided that if an added amine base is present the ratio solvent: added amine base is greater than 15:1.
Patent CA-2287643-A1 (CA)
Title: Computerized method and apparatus for analyzing nucleic acid assay readings
Inventor: HAALAND PERRY D
IPC: G16B25/00
Filed: 1999-10-27
Abstract: A computerized method and apparatus are disclosed for analyzing numerical data pertaining to a sample assay comprising at least one biological or chemical sample. The data include a set of data pertaining to each respective sample, with each set of data including a plurality of values each representing a condition of the sample at a given time. The method and apparatus assign a respective numerical value to each of the data values, mathematically combine the numerical values to generate a total value, compare the total value to a threshold value, and control the system to indicate whether the sample has a predetermined characteristic based on a result of the comparison. Prior to calculation of the sample value, filtering, normalizing and other correcting operations can be performed on the data to correct anomalous values in the data which could adversely affect the accuracy of the results. The method and apparatus perform the described functions by representing the data values as points on a graph having a vertical axis representing the magnitudes of the values and a horizontal axis representing a period of time during which readings of the sample were taken to obtain the data values, identifying points on the graph having an anomalous characteristic, and correcting the anomalous points to produce a corrected plot of points on the graph, with each of the points of the corrected plot representing a magnitude of a corresponding one of the values. An area value is then calculated which represents an approximate area between at least a portion of the corrected plot of points on the graph and the horizontal axis. The area value is compared to a threshold value to determine whether a certain condition exists in the sample to which the set of data pertains.
Patent CA-2287651-A1 (CA)
Title: A method of local flow control in an asynchronous transfer mode network utilizing pnni routing protocol
Inventor: OR ALEXANDER
IPC: H04L12/56
Filed: 1999-10-27
Abstract: A method of performing flow control in a PNNI network permitting a node that becomes congested to advertise this fact to the network thus eliminating additional call requests and other messages that it already cannot handle due to the current load. The method utilizes the Maximum Cell Rate (MCR) and Available Cell Rate (ACR) parameters provided for in the PNNI standard. When the congestion level on a local node exceeds a predetermined threshold, a PTSE with MCR set to zero and ACR set to zero is advertised to the network. The PTSE causes nodes (originating nodes in particular) to not consider that node in route calculations. When the congestion level recedes on the local node, another PTSE is generated with the original MCR and ACR that existed before the congestion occurred. The originating nodes, in response to the source users requesting call connections via the edge devices, will not forward the call requests to upstream nodes while the MCR and ACR parameters are set to zero in their topology databases. Once the PTSE with the original MCR and ACR values is received by an originating node, the call request messages are forwarded to the network without delay. Hysteresis can be employed to reduce oscillations in the network by making the threshold for determining the congestion state higher than the threshold for removing the congestion state.
Patent CA-2289959-A1 (CA)
Title: Router placement methods and apparatus for designing ip networks with performance guarantees
Inventor: HARSHAVARDHANA PARAMASIVIAH
IPC: H04L12/56
Filed: 1999-11-17
Abstract: Methods and apparatus are provided for designing IP networks with substantially improved performance as compared to existing IP networks such as, for example, those networks designed under best-effort criteria. Particularly, the invention includes methods and apparatus for: computing worst-case and optimistic link capacity requirements; optimizing network topology; and determining router placement within a network.
Patent CA-2290197-A1 (CA)
Inventor: FOLEY PATRICIA L
IPC: C12N7/01
Filed: 1999-11-23
Abstract: This invention provides a vaccine for protecting swine against influenza virus by administration of an attenuated recombinant vaccinia virus containing inserts of the hemagglutinin (HA) and nucleoprotein (NP) genes of influenza virus, which express the hemagglutinin and nucleoprotein proteins.